Installing Toastman firmware on Linksys E2000

I am running a Linksys E2000 router with DD-WRT. I want to flash the Toastman firmware from DD-WRT's upgrade firmware menu. The file I will flash is named tomato-E2000-NVRAM60K-1.28.7499.1MIPSR2Toastman-VLAN-RT-Std.bin
Is this the right firmware to flash? Any guidelines I should keep in mind?